uint QFileInfoPrivate::getFileFlags(QAbstractFileEngine::FileFlags request) const
{
Q_ASSERT(fileEngine); // should never be called when using the native FS
// We split the testing into tests for for LinkType, BundleType, PermsMask
// and the rest.
// Tests for file permissions on Windows can be slow, expecially on network
// paths and NTFS drives.
// In order to determine if a file is a symlink or not, we have to lstat().
// If we're not interested in that information, we might as well avoid one
// extra syscall. Bundle detecton on Mac can be slow, expecially on network
// paths, so we separate out that as well.
QAbstractFileEngine::FileFlags req = 0;
uint cachedFlags = 0;
if (request & (QAbstractFileEngine::FlagsMask | QAbstractFileEngine::TypesMask)) {
if (!getCachedFlag(CachedFileFlags)) {
req |= QAbstractFileEngine::FlagsMask;
req |= QAbstractFileEngine::TypesMask;
req &= (~QAbstractFileEngine::LinkType);
req &= (~QAbstractFileEngine::BundleType);
cachedFlags |= CachedFileFlags;
}
if (request & QAbstractFileEngine::LinkType) {
if (!getCachedFlag(CachedLinkTypeFlag)) {
req |= QAbstractFileEngine::LinkType;
cachedFlags |= CachedLinkTypeFlag;
}
}
if (request & QAbstractFileEngine::BundleType) {
if (!getCachedFlag(CachedBundleTypeFlag)) {
req |= QAbstractFileEngine::BundleType;
cachedFlags |= CachedBundleTypeFlag;
}
}
}
if (request & QAbstractFileEngine::PermsMask) {
if (!getCachedFlag(CachedPerms)) {
req |= QAbstractFileEngine::PermsMask;
cachedFlags |= CachedPerms;
}
}
if (req) {
if (cache_enabled)
req &= (~QAbstractFileEngine::Refresh);
else
req |= QAbstractFileEngine::Refresh;
QAbstractFileEngine::FileFlags flags = fileEngine->fileFlags(req);
fileFlags |= uint(flags);
setCachedFlag(cachedFlags);
}
return fileFlags & request;
}
QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request) const
{
Q_ASSERT(fileEngine); // should never be called when using the native FS
if (!cache_enabled)
clearFlags();
uint cf = 0;
switch (request) {
case QAbstractFileEngine::AccessTime:
cf = CachedATime;
break;
case QAbstractFileEngine::BirthTime:
cf = CachedBTime;
break;
case QAbstractFileEngine::MetadataChangeTime:
cf = CachedMCTime;
break;
case QAbstractFileEngine::ModificationTime:
cf = CachedMTime;
break;
}
if (!getCachedFlag(cf)) {
fileTimes[request] = fileEngine->fileTime(request);
setCachedFlag(cf);
}
return fileTimes[request];
}
QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request) const
{
if (!cache_enabled)
clearFlags();
uint cf;
if (request == QAbstractFileEngine::CreationTime)
cf = CachedCTime;
else if (request == QAbstractFileEngine::ModificationTime)
cf = CachedMTime;
else
cf = CachedATime;
if (!getCachedFlag(cf)) {
fileTimes[request] = fileEngine->fileTime(request);
setCachedFlag(cf);
}
return fileTimes[request];
}
QDateTime &QFileInfoPrivate::getFileTime(QAbstractFileEngine::FileTime request) const
{
Q_ASSERT(fileEngine); // should never be called when using the native FS
if (!cache_enabled)
clearFlags();
uint cf;
if (request == QAbstractFileEngine::CreationTime)
cf = CachedCTime;
else if (request == QAbstractFileEngine::ModificationTime)
cf = CachedMTime;
else
cf = CachedATime;
if (!getCachedFlag(cf)) {
fileTimes[request] = fileEngine->fileTime(request);
setCachedFlag(cf);
}
return fileTimes[request];
}
